Remote Sensing, Free Full-Text
Por um escritor misterioso
Last updated 04 julho 2024
![Remote Sensing, Free Full-Text](https://pub.mdpi-res.com/remotesensing/remotesensing-13-00736/article_deploy/html/images/remotesensing-13-00736-ag.png?1614300256)
Small-scale placer mining in Colombia takes place in rural areas and involves excavations resulting in large footprints of bare soil and water ponds. Such excavated areas comprise a mosaic of challenging terrains for cloud and cloud-shadow detection of Sentinel-2 (S2A and S2B) data used to identify, map, and monitor these highly dynamic activities. This paper uses an efficient two-step machine-learning approach using freely available tools to detect clouds and shadows in the context of mapping small-scale mining areas, one which places an emphasis on the reduction of misclassification of mining sites as clouds or shadows. The first step is comprised of a supervised support-vector-machine classification identifying clouds, cloud shadows, and clear pixels. The second step is a geometry-based improvement of cloud-shadow detection where solar-cloud-shadow-sensor geometry is used to exclude commission errors in cloud shadows. The geometry-based approach makes use of sun angles and sensor view angles available in Sentinel-2 metadata to identify potential directions of cloud shadow for each cloud projection. The approach does not require supplementary data on cloud-top or bottom heights nor cloud-top ruggedness. It assumes that the location of dense clouds is mainly impacted by meteorological conditions and that cloud-top and cloud-base heights vary in a predefined manner. The methodology has been tested over an intensively excavated and well-studied pilot site and shows 50% more detection of clouds and shadows than Sen2Cor. Furthermore, it has reached a Specificity of 1 in the correct detection of mining sites and water ponds, proving itself to be a reliable approach for further related studies on the mapping of small-scale mining in the area. Although the methodology was tailored to the context of small-scale mining in the region of Antioquia, it is a scalable approach and can be adapted to other areas and conditions.
Remote Sensing Free Full Text Analysis Of Settlement Expansion And
![Remote Sensing, Free Full-Text](https://remote-sensing-portal.com/uploaded/leclogo/remote%20sensing%20fundamentals.jpg)
Remote Sensing Specialist Certificate & Courses
![Remote Sensing, Free Full-Text](https://galaxyproject.org/images/vgp/VGP_hub.jpg)
Galaxy
Remote Sensing of Plant Biodiversity
![Remote Sensing, Free Full-Text](https://eos.com/wp-content/uploads/2019/04/free-sat-imgs-fb.jpg)
Free Satellite Imagery: Data Providers & Sources For All Needs
![Remote Sensing, Free Full-Text](https://wildlabs.net/sites/default/files/embeds/f1c85d14a8b448393731e105d49ea064.png%3Fc87dcd2b77e62aa5)
Remote Sensing, Free Full-Text, Estimation of Forest LAI Using Discrete Airborne LiDAR: A Review
![Remote Sensing, Free Full-Text](https://miro.medium.com/v2/resize:fit:1400/0*8mY6XK3JidAfygff.png)
Segment Anything 3D for Point Clouds: Complete Guide
![Remote Sensing, Free Full-Text](https://www.ncu.edu.tw/upload/event/%E5%B7%A5%E4%BD%9C%E5%8D%80%E5%9F%9F%207_20230925032737_0.png)
National Central University
![Remote Sensing, Free Full-Text](https://pub.mdpi-res.com/remotesensing/remotesensing-14-04115/article_deploy/html/images/remotesensing-14-04115-ag-550.jpg?1661478805)
Remote Sensing Dictionary - Colaboratory
![Remote Sensing, Free Full-Text](https://i1.rgstatic.net/publication/362327989_Integrating_geographical_information_systems_remote_sensing_and_machine_learning_techniques_to_monitor_urban_expansion_an_application_to_Luanda_Angola/links/630f8e3e61e4553b9552cb2c/largepreview.png)
PDF) Integrating geographical information systems, remote sensing, and machine learning techniques to monitor urban expansion: an application to Luanda, Angola
![Remote Sensing, Free Full-Text](https://www.mdpi.com/remotesensing/remotesensing-06-09458/article_deploy/html/images/remotesensing-06-09458f1.png)
Remote Sensing, Free Full-Text
![Remote Sensing, Free Full-Text](https://pictures.abebooks.com/inventory/22586763797_2.jpg)
Remote Sensing and Image Interpretation Third Edition by Lillesand, Thomas M. & Kiefer, Ralph W.: Near Fine Soft Cover (1994) 3rd Edition.
![Remote Sensing, Free Full-Text](https://ars.els-cdn.com/content/image/1-s2.0-S1569843222000681-gr2.jpg)
Monitoring peatland water table depth with optical and radar satellite imagery - ScienceDirect
Fundamentals of satellite remote sensing : an environmental approach : Chuvieco, Emilio, author : Free Download, Borrow, and Streaming : Internet Archive
![Remote Sensing, Free Full-Text](https://ars.els-cdn.com/content/image/1-s2.0-S2590332220302062-gr3.jpg)
Applications in Remote Sensing to Forest Ecology and Management - ScienceDirect
Recomendado para você
-
SCP-007-INT Oneiric - The Nucleus-less Blob that Defies Physics04 julho 2024
-
The Power of Fasting: My 5-Day Fast Results, by Edi Ferreira04 julho 2024
-
SCP 007 - Abdominal Planet - Euclid04 julho 2024
-
Standards, Reagents & Certified Reference Materials - SCP Science04 julho 2024
-
Scp 999 T-shirtscp 999 T Camisa 100% Algodão Scp 999 T Shirtscp 999 Tamanho Grande 6xl T Presente Moda - Camisetas Sob Medida - AliExpress04 julho 2024
-
SCP-847 pt.2 #scps #scpstuffs #scp847 #scpsontiktok #scpfoundation #sc04 julho 2024
-
Calibration of Angle - Bevel Protector, PDF04 julho 2024
-
00051128568453 3M™ Mining Cable Splice Kit 3104, 10 kits/case04 julho 2024
-
MGAMES SCPS - Minecraft Mods - CurseForge04 julho 2024
-
Possessor Original 2020 U.S. Screenprint Signed by Akiko04 julho 2024
você pode gostar
-
Tyrant Dragon04 julho 2024
-
Desenho infantil Oscar oásis04 julho 2024
-
Instant Pot Chicken Noodle Soup (Dump-and-Go!) - Thriving Home04 julho 2024
-
Renderização em 3d de uma casa moderna com fachada escura. casa com janelas panorâmicas e terraço. tijolo04 julho 2024
-
Vale a pena assistir Hinamatsuri? [CORTES ANIME IPPON]04 julho 2024
-
Your name. Kimi no na wa 1-3 Comic complete set / Japanese Manga Book Japan04 julho 2024
-
Madara Uchiha: história, personalidade e características do vilão de Naruto - Aficionados04 julho 2024
-
ART] Kubo-san wa Boku wo Yurusanai Vol. 5 Cover : r/manga04 julho 2024
-
Digimon Adventure tri. chega hoje ao Brasil pelo Crunchyroll - TecMundo04 julho 2024
-
GTA 504 julho 2024